Apparatus for manipulating drill-rods



(No Model.)

L. & J. P. GRISCOM.

APPARATUS FOR MANIRULATING DRILL RODS.

N0. 328,213. Patented Oct. 13, 1885.

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UNITED STATES LEWIS vGrRISOOM AND JOHN I. GRISOOM, OF FOTTSVILLE, PENNSYLVANIA.

PATENT OFFICE.

APPARATUS FOR MANIPULATING DRILL-RODS.

SPECIFICATION forming part. of Letters Patent No. 328,213, dated October 13, 1885.

Application filed June 19, 1885. Serial No. 169,185. (No model.)

To @ZZ whom it may concern:

Be it known that we, LEwIs GRIscoM and JOHN P. GEIsooM, both citizens of the United States, and residing in Pottsville, Pennsylvania, have invented certain Improved Apparatus for Manipulating Drill- Rods, 8vo., of which the following is a specification.

The object of our invention is to construct a machine for inserting drill-rods into and withdrawing them from holes drilled in the rock, more especially where such holes are in a horizontal or angular direction. rlhe ordinary method of introducing drill-rods into such holes has been by means of blockand tackle; but this, besides being tedious, inconvenient, and clumsy, often results in the breaking of the rod should the latter meet an obstruction.

In the accompanying drawings, Figure 1 is a front view of our improved machine. Fig. 2 is a side View, and Fig. 3 is atransverse section on the line 1 2, Fig. 1.

A A are two posts, of a suitable form, and to these posts are bolted a bed-plate, B, having bearings b b for a horizontal power-driven shaft, D, which carries within the slotted frame a grooved pulley, E, and cog or gear wheel F.

On the face of the bedplate B is mounted an open plate, B', which is provided on its under side with longitudinal ribs r, Fig. 3, adapted to corresponding grooves on the face of the bed-plate B, and through the slots in this plate B pass guidingplates s-four in the present instance. This plate B carries bearings b for a short shaft, D', carrying a grooved pulley, E', and gear-Wheel F', engaging with the corresponding Wheel, F, the grooved pulleys E and E' being immediately opposite each other, so that when they are brought toward each other they can grasp between them the drillrod to be inserted into or withdrawn from the drill-hole.

The apparatus being arranged in a vertical position, as shown in Figs. 1 and 2, the plateV B' and the pulley and gear-wheel carried thereby are supported by a strapVT, suspended from a cross-head, K, on the upper end of a piston, l?, (shown by dotted lines in Fig. 1,) adapted to a cylinder, N, mounted on the bed plate or frame and having an open top. This cylinder is provided with an inletpipe, n, preferably having a three-way cock to per mit of the introduction of steam, water, or compressed air or other operating duid to raise the piston.

In employing the machine to withdraw a drill-rod from a hole, for instance, the end of the rod isintroduced between the two grooved pulleys E E and operating iiuid is then admitted to the cylinder N below the piston to raise the latter, and with it through the strap T, the plate B, which carries the grooved pulley E', and gear-wheel F', power having in the meantime been applied to the shaftD to rotate the wheels and pulleys so that when the latter grip the rod it can be rapidly withdrawn from or inserted into the hole.

We claim as our inventionl. The herein-described apparatus for inserting drillrods into and withdrawing them from their holes, said apparatus consisting of a frame carrying a rot-ating grooved pulley and a corresponding grooved pulley adapted to be adjusted toward and from the other, but rotated therewith, substantially as set forth.

2. The hereindescribed apparatus for inserting drill-rods into and withdrawing them from their holes, said apparatus consisting of a fixed frame carrying a grooved pulley, a movable frame carrying a corresponding grooved pulley geared with the first, said movable frame being adjustable from and t0- ward the first grooved pulley, all substantially as described.

3. The combination of the frame carrying a rotary grooved pulley, and a cylinder with the movable plate carrying a corresponding grooved pulley, and a piston adapted to said cylinder and supporting said movable plat-e.

4. The combination ofthe bed-plate, and rotary grooved pulley adapted to bearings therein, and cylinder N, with the piston adapted thereto, and movable plate carrying a grooved pulley, and a strap carried by the piston and supporting said movable plate, all substantially as specified.

In testimony whereof We have signed our names to this specilication in the presence of two subscribing witnesses.

LEWIS GRISOOM. JNO. P. GRISCOM.

Witnesses:

WALTER I. RALM, H. G. J UNGKUETH. 

